On Sept. 19, 2025, the state health officials of the members of the West Coast Health Alliance, including health officials from California, Oregon, Hawaii and Washington issued the following statement on outcomes of the Advisory Committee on Immunization Practice (ACIP):

“At the September 18-19th ACIP meeting, committee members did not employ standard scientific methods to evaluate information presented to them.

The ACIP recommendations on measles, mumps, rubella and varicella (MMRV) vaccine and proposed tabled recommendations on Hepatitis B limit patient choice and access to vaccines with disproportionate impact on children receiving immunizations through Vaccines for Children (VFC). No new safety or efficacy data were presented to form the basis of these recommendations.

The West Coast Health Alliance (WCHA) affirms the pre-existing and American Academy of Pediatrics​ (AAP) recommendation that parents have an option to choose whether their child receives separate (MMR + V) or combined (MMRV) vaccines for children less than 4 years of age.

Restoring a process for systematically reviewing the evidence and a framework for translating the evidence into recommendations will restore scientific rigor and transparency and maintain vaccine choice for all families.”